#3668C0#3668C0

#3668C0 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.0% C 0.148 H 260.8°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3668C0
RGB	rgb(54, 104, 192)
HSL	hsl(218, 56%, 48%)
HSV	hsv(218, 72%, 75%)
CMYK	cmyk(71.9%, 45.8%, 0%, 24.7%)
CIE-LAB	lab(44.93, 13.36, -51.10)
CIE-LCH	lch(44.93, 52.82, 284.66°)
OKLab	oklab(52.95% -0.0238 -0.1464)
OKLCH	oklch(52.95% 0.148 260.8)
XYZ	xyz(15.9826, 14.4890, 51.8133)
Luminance	0.1449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668C0 #C08E36

analogous

#36ADC0 #3668C0 #4936C0

triadic

#3668C0 #C03668 #68C036

tetradic

#3668C0 #C036AD #C08E36 #36C049

square

#3668C0 #C036AD #C08E36 #36C049

split-complementary

#3668C0 #C04936 #ADC036

monochromatic

#1B3460 #294E90 #3668C0 #618AD2 #90ADE0

Accessibility & contrast

On white

5.39

#3668C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3668C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668C0

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668C0	#FFFFFF	#000000	##FFFFFF
##3668C0	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B71C3

Deuteranopia (green-blind)

#1D64BE

Tritanopia (blue-blind)

#007D8A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3668c0;
/* rgb */ color: rgb(54, 104, 192);
/* oklch */ color: oklch(53.0% 0.148 260.8);

Tailwind

colors: {
  custom: {
    50: '#7e92d3',
    500: '#3668c0',
    950: '#000000',
  },
}

SCSS

$custom: #3668c0;
$custom-light: #7e92d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3668c0",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 192
  },
  "hsl": {
    "h": 218.261,
    "s": 56.098,
    "l": 48.235
  },
  "oklch": {
    "l": 0.52951,
    "c": 0.14831,
    "h": 260.8
  },
  "luminance": 0.14491
}

Semantic roles & 50–950 ramp

primary

#3668C0

secondary

#CBB287

accent

#A948DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3668C0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →